To add to this - today we have a very nice study of patient contacts of infected healthcare workers, with universal masking implemented during the study period /1
academic.oup.com/cid/advance-ar…
Out of 226 patient exposures there was only one likely transmission, in a case where both clinician and patient were unmasked. /2
“Our data suggest that the risk of transmission is low even in the absence of eye protection so long as the infected person is masked”
Bookmark @EricMeyerowitz
Ps reference 13 is this Easter egg that I am looking forward to reading
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